WO2003009428A1 - Cord clamp - Google Patents
Cord clamp Download PDFInfo
- Publication number
- WO2003009428A1 WO2003009428A1 PCT/GB2002/003266 GB0203266W WO03009428A1 WO 2003009428 A1 WO2003009428 A1 WO 2003009428A1 GB 0203266 W GB0203266 W GB 0203266W WO 03009428 A1 WO03009428 A1 WO 03009428A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cable
- path
- steps
- ridges
- grip
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/585—Grip increasing with strain force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/5841—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable allowing different orientations of the cable with respect to the coupling direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/595—Bolts operating in a direction transverse to the cable or wire
Definitions
- This invention relates to electrical cable or cord grip devices for mains plugs, sockets, or other electrical appliances, and in particular, to a clamping device which is capable of securely gripping cables of different diameters.
- the present invention seeks to provide a cord grip which is capable of securely clamping cables having a wide range of diameters, whilst still allowing them to be easily inserted into the plug for assembly purposes.
- the present invention provides a cord grip for an electrical appliance comprising a cable entry path having a first, fixed abutment member on one side of the path, and a second, flexible arm member on the opposite side of the path, which is provided with an adjustable clamping means, to urge it in a direction towards the fixed member, so as to clamp a cable between them.
- the flexible member comprises an arm which extends generally parallel to the path of the cable, and has one end fixed in the appliance, whilst the other end is free, but can be engaged by a clamping screw, to urge it towards the fixed member.
- the fixed member has a ridged or stepped surface, with the ridges extending at right angles to the path of the cable, whilst the flexible member has a ridged or stepped surface on which the ridges or steps extend parallel to the path of the cable In the way, it is possible to ensure that the cable is not only held securely against being pulled directly out of the plug or appliance, or pushed in, but is also secured against twisting, which could otherwise cause the conductors to become detached from their terminals
- the ridges may be provided on the flexible member and the steps on the fixed member, or one or both members may carry an arrangement of steps each of which has a surface which is also transversely ridged
- Figures 1 to 5 are examples of various known types of electrical cord grips
- Figure 6 is a plan view of a cord grip arrangement according to the present invention
- Figure 7 is a cross-section taken on the line A-A of Figure 6
- Figure 8 is a perspective view of the cord grip of Figure 6 and 7
- Figure 9 is a partial perspective view of an alternative embodiment of the invention
- Figures 1 to 5 are diagrammatic views of various known types of cord grip designs, it will be seen that these generally fall into two categories the types shown in Figures 1 and 2, in which the cable is clamped into position by means of screws, and the type shown in Figures 3 to 5, in which the clamping effect depends on resilient arms of various configurations
- screws 2 and 4 as shown in Figure 1 are used to tighten a semi-rigid bar 6 down onto the cable 8, to clamp it into the entry channel, while Figure 2 shows an arrangement with a single clamping screw 10 which carries an enlarged head 12, to bear directly on the cable
- the cable is typically held in position by means of shaped flexible arms 14, 16 having ridged surfaces 18, 20 These engage the cable in such a way that any attempt to pull the cable
- cord grips of the first type including screws
- cord grips of the second type have the advantage that they hold the cable very securely
- assembly is simpler but, generally speaking, the cable is then not quite so well secured
- the cord grip of the present invention combines the ease of assembly of a "flexible arm” type of clamp, with the security of a screw fixing clamp
- a fixed abutment member 30 is fitted on one side of the cable entry path, and has a ridged surface 32 facing the adjacent side of the cable 34 The ridges extend at right angles to the direction of the cable entry path, so as to resist any tendency for the cable to be pulled out of the appliance
- a flexible arm 36 extends generally parallel to the path of the cable, with its inner end 38 fixed to the interior of the appliance
- a clamping screw 40 is threaded into a fixed mounting block 42 in the appliance, and its inner end 44 bears against the outer end of arm 36, so that when the screw is tightened, the outer end of the arm moves to the dashed position 46 indicated in Figure 6, where it engages the side of the cable
- the facing surface 48 of the arm 36 carries a stepped formation, with the steps extending parallel to the cable direction, so that when the arm is moved to the engaged position as shown in Figure 6, the upper edge 50 overlaps the cable somewhat, so that the cable is held firmly in position against the opposing ridged surface 32.
- the exemplary embodiments show the arm 36 as extending outwardly relative to the cable entry, it could alternatively extend inwardly.
Landscapes
- Installation Of Indoor Wiring (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02751315A EP1407518A1 (en) | 2001-07-19 | 2002-07-16 | Cord clamp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0117656.9 | 2001-07-19 | ||
GB0117656A GB2377826B (en) | 2000-07-18 | 2001-07-19 | Cord clamp |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003009428A1 true WO2003009428A1 (en) | 2003-01-30 |
Family
ID=9918833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/003266 WO2003009428A1 (en) | 2001-07-19 | 2002-07-16 | Cord clamp |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1407518A1 (en) |
CN (1) | CN100536247C (en) |
BG (1) | BG65730B1 (en) |
WO (1) | WO2003009428A1 (en) |
ZA (1) | ZA200401039B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018046511A1 (en) * | 2016-09-06 | 2018-03-15 | Phoenix Contact E-Mobility Gmbh | Plug connector part with strain relief |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1835666B (en) * | 2006-02-20 | 2010-06-30 | 常熟市天银机电有限公司 | Wire holding clips of electrical device |
CN101179183B (en) * | 2006-11-08 | 2010-05-26 | 鸿富锦精密工业(深圳)有限公司 | Wire clamp |
CN104659634B (en) * | 2013-11-25 | 2017-11-21 | 珠海格力电器股份有限公司 | Automatic pulling and plugging device for coupler and power line |
CN113646861A (en) * | 2019-04-10 | 2021-11-12 | 三菱电机株式会社 | Electromagnetic contactor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2432234A1 (en) * | 1978-07-26 | 1980-02-22 | Legrand Sa | Connector cable grip integrated with body shell - consists of two flexible tongues with ribbed end pillars |
GB2193389A (en) * | 1985-07-24 | 1988-02-03 | Meritlink Ltd | Cable clamp |
US5052643A (en) * | 1990-03-26 | 1991-10-01 | Heyco Molded Products, Inc. | Screw and screw releasable strain relief bushing with a non-fall out screw |
GB2366920A (en) * | 2000-07-18 | 2002-03-20 | Delta Electrical Accessories | Cord clamp with fixed member and flexible member |
-
2002
- 2002-07-16 WO PCT/GB2002/003266 patent/WO2003009428A1/en not_active Application Discontinuation
- 2002-07-16 CN CNB028162242A patent/CN100536247C/en not_active Expired - Fee Related
- 2002-07-16 EP EP02751315A patent/EP1407518A1/en not_active Withdrawn
-
2004
- 2004-02-09 ZA ZA200401039A patent/ZA200401039B/en unknown
- 2004-02-13 BG BG108580A patent/BG65730B1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2432234A1 (en) * | 1978-07-26 | 1980-02-22 | Legrand Sa | Connector cable grip integrated with body shell - consists of two flexible tongues with ribbed end pillars |
GB2193389A (en) * | 1985-07-24 | 1988-02-03 | Meritlink Ltd | Cable clamp |
US5052643A (en) * | 1990-03-26 | 1991-10-01 | Heyco Molded Products, Inc. | Screw and screw releasable strain relief bushing with a non-fall out screw |
GB2366920A (en) * | 2000-07-18 | 2002-03-20 | Delta Electrical Accessories | Cord clamp with fixed member and flexible member |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018046511A1 (en) * | 2016-09-06 | 2018-03-15 | Phoenix Contact E-Mobility Gmbh | Plug connector part with strain relief |
LU93198B1 (en) * | 2016-09-06 | 2018-04-05 | Phoenix Contact E Mobility Gmbh | Connector part with a strain relief |
US10644442B2 (en) | 2016-09-06 | 2020-05-05 | Phoenix Contact E-Mobility Gmbh | Plug connector part with strain relief |
Also Published As
Publication number | Publication date |
---|---|
EP1407518A1 (en) | 2004-04-14 |
BG108580A (en) | 2005-03-31 |
CN1543695A (en) | 2004-11-03 |
CN100536247C (en) | 2009-09-02 |
BG65730B1 (en) | 2009-08-31 |
ZA200401039B (en) | 2005-05-30 |
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